Illuminated display

Abstract

A sign box for an illuminated sign, having side walls, namely top and bottom walls and end walls, and having a front face frame movably attached to one of the side walls, the four side walls each defining a generally-planar wall panel with front and rear edges and a forwardly-directed hinge formation, offset from the plane of the planar wall panel, and a junction wall formation formed between the hinge formation and the planar wall, and extending forwardly, and having a rear junction formation formed along the rear edge of the wall panel, one of the front and rear junction members being interengageable with the other of the front and rear junction formations on another wall panel, so that two wall panels may be joined together forming the side walls of the sign box.

What is claimed is: 
     
       1. A sign box apparatus for a sign of the type having side walls comprising top and bottom walls and end walls, and having face panel means, movably attached to one of said side walls, and comprising: a face frame adapted to receive a sign face panel;   a frame hinge formation on said face frame;   and said four side walls each comprising:   a generally-planar wall panel defining front and rear edges;   a forwardly-directed wall hinge formation on said front edge interengageable with said hinge formation on said face frame   a forward junction wall formation based between said hinge formation and said planar wall panel, and extending forwardly, and having a predetermined first shape;   a rear junction formation formed along said rear edge of said wall panel, and having a predetermined second shape, adapted to interfit and mate with said predetermined first shape of said forward junction wall formation;   whereby one of said forward and rear junction formations on a said wall panel is interengageable with the other of said forward and rear junction formations on another said wall panel, whereby two said wall panels may be joined together to form said side walls of said sign box.   
     
     
       2. A sign box apparatus as claimed in claim 1 having two said face panel means, and wherein each side wall of said sign box comprises at least two said wall panels, and including a further intermediate connecting wall panel, said connecting wall panel having first and second connecting edges, and having connecting formations on each of said connecting edges, said connecting formations being interengageable with said rear junction formations on said at least two wall panels. 
     
     
       3. A sign box apparatus as claimed in claim 2 for a double-faced sign, and including channel walls formed on the interior of said connecting wall panel, and attachment flanges formed on said channel walls, said attachment flanges being adapted to form an electrical raceway. 
     
     
       4. A sign box apparatus as claimed in claim 1 wherein said wall hinge formation comprises a generally downwardly and a forwardly directed hinge wall located in a predetermined plane offset from the plane of said wall panel. 
     
     
       5. A sign box apparatus as claimed in claim 4 wherein said forward junction wall is formed in a plane intermediate said planes of said wall panel and of said wall hinge formation. 
     
     
       6. A sign box apparatus as claimed in claim 1 wherein said forward junction formation comprises a generally planar wall in a plane offset from and parallel to the plane of said wall panel, and a generally right-angular junction strip at the forward edge thereof. 
     
     
       7. A sign box apparatus as claimed in claim 6 wherein said rear junction formation comprises a generally L-shaped junction member, and having a junction rib formed thereon for interengagement with said planar wall and junction strip of said forward junction formation. 
     
     
       8. A sign box apparatus as claimed in claim 1 wherein said rear junction formation is further adapted to interlock with a portion of a back panel means. 
     
     
       9. A sign box apparatus as claimed in claim 7 including a back panel means having a generally L-shaped upper edge flange portion, said flange portion being adapted to interfit with said generally L-shaped junction member and junction rib formed thereon.